Chiral Lagrangians for mesons with a single heavy quark

Jiang, Shao-Zhou (Key Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University, Nanning 530004, People’s Republic of China) ; Liu, Yan-Rui (School of Physics, Shandong University, Jinan 250100, People’s Republic of China) ; Yang, Qin-He (Key Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University, Nanning 530004, People’s Republic of China)

16 April 2019

Abstract: We construct the relativistic chiral Lagrangians for heavy-light mesons (Qq¯) to the O(p4) order. From O(p2) to O(p4), there are 17, 67, and 404 independent terms in the flavor SU(2) case and 20, 84, and 655 independent terms in the flavor SU(3) case. The Lagrangians in the heavy quark limit are also obtained. From O(p2) to O(p4), there are 7, 25, and 136 independent terms in the flavor SU(2) case and 8, 33, and 212 independent terms in the flavor SU(3) case. The relations between low-energy constants based on the heavy quark symmetry are also given up to the O(p3) order.


Published in: Physical Review D 99 (2019)
Published by: APS
DOI: 10.1103/PhysRevD.99.074018
arXiv: 1901.09479
License: CC-BY-4.0



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